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Topic: Siphon (biology)


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 Siphon - Wikipedia, the free encyclopedia
The term "siphon" is used for a number of structures in human and animal anatomy, either because flowing liquids are involved or because the structure is shaped like a siphon, but in which no actual siphon effect is occurring: see Siphon (biology).
The siphon works because the ultimate drain point is lower than the reservoir and the flow of liquid out the drain point creates a vacuum in the tube such that liquid is drawn up out of the reservoir.
The siphon was first used as a weapon by the Byzantine Navy, and the most common method of deployment was to emit Greek fire, a formula of burning oil, through a large bronze tube onto enemy ships.
en.wikipedia.org /wiki/Siphon   (3005 words)

  
 IB 116(2)
Metamorphosis is completed with the differentiation of the unique excurrent siphon in 2 mm shell-length juveniles.
Metamorphosis was induced by ultrafiltrates (10 kDa, 1 kDa, and 500 Da) of CSW, albeit in a variable manner.
Larval metamorphosis of the dorid nudibranch Adalaria proxima is induced by a water-borne cue present in seawater that has been conditioned with live Electra pilosa, its preferred bryozoan prey.
www.umesci.maine.edu /ams/IB1162.HTM   (2344 words)

  
 UCSC Biology 136 M/Vtext
The siphon tips are supplied with tiny sensitive tentacles; when they are touched, the siphon muscles retract immediately and the clam closes-up--it literally "clams up".
Besides the enclosing shell and mantle, the major exploring of structures by bivavled mollusks is the modification of structures by bivavled mollusks is the modification of the gills--the ctenidia --for filter-feeding.
The shell could not be much thinner than it is, or else it would collapse under the force of the animal's muscles.
bio.classes.ucsc.edu /bio136/LabManual/Mytilus-Venus/M-Vtext.html   (6007 words)

  
 nautilus profile
The video, in three short chapters, describes nautilus biology and ecology, and features some of the research efforts in which the Waik
Nautilus swim in a see-saw motion generated by "jet propulsion." They alternately pull water into the mantle cavity within the shell and blow it out the muscular siphon beneath the tentacles.
But, unlike snails, the nautilus shell is divided into compartments (about four in newly hatched specimens, 30 in mature individuals), and the animal occupies only the outer-most "living chamber." As the nautilus grows, its body moves forward in the enlarged shell and produces a wall to seal off older chambers.
waquarium.mic.hawaii.edu /MLP/root/html/MarineLife/Invertebrates/Molluscs/Nautilus.html   (1488 words)

  
 Aquarium Fish Deals - About Cichlids (CICHLIDAE) - Angelfish, Discus, Oscars, Tanganyika, Malawi, Other
Fryer, G., and T.D. Iles 1972 The Cichlid Fishes of the Great Lakes of Africa: their biology and evolution.
No need to carry heavy buckets of water to and from your tank, just hook this up to a faucet and siphon out water and then fill with fresh.
Perfect for ensuring your fish are fed regularly while you're away and ideal for everyday feeding.
www.fishdeals.com /cichlids/index.shtml   (877 words)

  
 Anopheles - Wikipedia, the free encyclopedia
In contrast to other mosquitoes, Anopheles larvae lack a respiratory siphon and for this reason position themselves so that their body is parallel to the surface of the water.
Understanding the biology and behavior of Anopheles mosquitoes can help understand how malaria is transmitted and can aid in designing appropriate control strategies.
Anopheles mosquitoes can be distinguished from other mosquitoes by the palps, which are as long as the proboscis, and by the presence of discrete blocks of black and white scales on the wings.
en.wikipedia.org /wiki/Anopheles   (877 words)

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